Finding the Fourth Proportional to 131,845.88, 181,949.82 and 72,229.88

Step by Step Solution

1. Step 1: Write the proportion equation
   131,845.88 : 181,949.82 = 72,229.88 : x
2. Step 2: Convert to fraction form
   131,845.88/181,949.82 = 72,229.88/x
3. Step 3: Cross multiply
   131,845.88x = 181,949.82 × 72,229.88
4. Step 4: Simplify right side
   131,845.88x = 13,142,213,664.62
5. Step 5: Solve for x
   x = 13,142,213,664.62/131,845.88
6. Step 6: Final answer
   x = 99,678.61